When Tanjiro asked his question, the other two also turned their eyes toward Uchiha Kazama.
Indeed...
Uchiha Kazama himself had told them that Muzan Kibutsuji was dead.
So why was he now talking about the source of demons?!
"Huh?!"
Seeing the innocent, clueless looks on their faces, Uchiha Kazama was puzzled himself.
Could it be that these three...
No, since the three of them had come here, that meant it wasn't just them...
The members of the Demon Slayer Corps probably didn't know either.
Otherwise, someone should have told them...
"Have you really forgotten?!"
Uchiha Kazama took a deep breath before speaking slowly.
"Huh?!"
His words immediately drew three utterly bewildered looks.
Nezuko, Tanjiro, and Giyu Tomioka all tilted their heads at Uchiha Kazama and exclaimed in unison.
"All right..."
"Didn't I tell you before that Muzan Kibutsuji wasn't the true source of demons?!"
"The doctor who turned Muzan Kibutsuji into a demon was the ultimate source."
"I killed Muzan Kibutsuji, and now I'm waiting for that being to appear!"
Uchiha Kazama briefly explained to the three of them what he was doing.
Hearing this...
The three exchanged glances, then realization dawned on them.
"You did say that before, Kazama."
"But we've spent all this time searching."
"We haven't found any other demons. Could it be that no such being exists at all?!"
"Or perhaps that being was a monster that existed long ago!"
"But somewhere along the long course of history, they died?!"
"There are so many possibilities."
Tanjiro spoke slowly.
"Tanjiro has a point, but Mr. Uchiha's concerns are also valid."
"Mr. Uchiha, have you found any leads?!"
Giyu Tomioka spoke up as well.
The reason they had unconsciously overlooked what Uchiha Kazama had mentioned before was that they hadn't found any trace of demons during their search.